no man, in any gear youre hubs unlock you from the differential, 2 hi 4 lo whatever, you just cant wheel in anythingbut a straight line with a welded front diff without getting out and unlocking one, and if you dont have a power steering setup it will be hard as hell to even try, weld the rear, it is hardly noticable, until its a super sharp turn , plus like the other guy said it is more critical to have the back locked, hills ,accelerating etc,